1.05442
Ammonium sulfide solution
GR for analysis
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About This Item
NACRES:
SE.11
UNSPSC Code:
12352301
Product Name
Ammonium sulfide solution, GR for analysis
vapor pressure
450 hPa ( 20 °C)
form
liquid
expl. lim.
4-46 % (v/v)
pH
9.5 (450 g/L in H2O)
transition temp
flash point 15 °C
density
0.997 g/cm3 at 20 °C
storage temp.
no temp limit
Quality Level
Related Categories
Analysis Note
Assay (as (NH₄)₂S from sulphide): ≥ 20 %
Chloride (Cl): ≤ 0.05 %
Ca (Calcium): ≤ 0.003 %
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.001 %
Mg (Magnesium): ≤ 0.0005 %
Na (Sodium): ≤ 0.005 %
Pb (Lead): ≤ 0.0005 %
Residue on ignition (800 °C as sulfate): ≤ 0.05 %
Chloride (Cl): ≤ 0.05 %
Ca (Calcium): ≤ 0.003 %
Cu (Copper): ≤ 0.0005 %
Fe (Iron): ≤ 0.0005 %
K (Potassium): ≤ 0.001 %
Mg (Magnesium): ≤ 0.0005 %
Na (Sodium): ≤ 0.005 %
Pb (Lead): ≤ 0.0005 %
Residue on ignition (800 °C as sulfate): ≤ 0.05 %
Application
- Improved Anti-Vulcanization and Bonding Performance of a Silver Alloy Bonding Wire by a Cathodic Passivation Treatment with Palladium: This study highlights the application of ammonium sulfide solution in enhancing the anti-vulcanization and bonding properties of silver alloy bonding wires used in electronic devices. The cathodic passivation treatment using ammonium sulfide offers significant improvements in the durability and performance of materials, which is pivotal in material science and industrial manufacturing (Yang et al., 2022).
- The roles and applications of chaotropes and kosmotropes in industrial fermentation processes: Ammonium sulfide, utilized as a chaotrope, plays a crucial role in stabilizing enzymes and proteins during fermentation processes. This application is particularly important in biotechnological and pharmaceutical industries, where enzyme stability is critical to the efficiency of bioprocesses (Timson, 2020).
- Cobalt iontophoresis techniques for tracing afferent and efferent connections in the vertebrate CNS: While primarily focused on cobalt iontophoresis, this research outlines the potential utility of ammonium sulfide in similar neuroscientific applications. Ammonium sulfide can be used for tracing neural connections due to its effective ion transport properties, providing valuable insights into neural pathway studies (Fuller and Prior, 1975).
signalword
Danger
hcodes
Hazard Classifications
Aquatic Acute 1 - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1B
supp_hazards
Storage Class
3 - Flammable liquids
wgk
WGK 3
flash_point_f
59.0 °F
flash_point_c
15 °C
Certificates of Analysis (COA)
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